Is “Topmast” a Scrabble word?
Yes
TOPMAST
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Topmast
noun
1.The highest mast in a fore-and-aft-rigged ship.
2.The mast below the topgallant mast in a square-rigged ship.